Why do it

It shows someone cares about that particular issue, which is a solid first step in solving it.

It enables government and designers access to information that they might not otherwise get when designing infrastructure solutions.

Photos of actual flood water are particularly valuable. Engineers can correlate the water levels in your photos with the rainfall records and our hydraulic model of Chennai. This enables them to make the hydraulic model more accurate. An accurate hydraulic model is essential in designing accurate hydaulic solutions.